5851232640 has 640 divisors, whose sum is σ = 23601853440. Its totient is φ = 1368576000.

The previous prime is 5851232633. The next prime is 5851232641. The reversal of 5851232640 is 462321585.

5851232640 is a `hidden beast` number, since 5 + 8 + 5 + 1 + 2 + 3 + 2 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5851232595 and 5851232604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5851232641) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 17677275 + ... + 17677605.

It is an arithmetic number, because the mean of its divisors is an integer number (36877896).

Almost surely, 2^5851232640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5851232640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11800926720).

5851232640 is an abundant number, since it is smaller than the sum of its proper divisors (17750620800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5851232640 is a wasteful number, since it uses less digits than its factorization.

5851232640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 5851232640 is about 76493.3502992254. The cubic root of 5851232640 is about 1801.9764955752.

The spelling of 5851232640 in words is "five billion, eight hundred fifty-one million, two hundred thirty-two thousand, six hundred forty".